Shop OEM General Motors Part # 42516646 (42342515). Radio Module Interface. CODE IOB, IOR. CODE: IOB, all, labeled: 42342515. CODE: IOB, all, labeled: 42516646. CODE: IOB, Chevrolet, labeled:

Control switch. Radio Module Interface.
Panel of knobs and switches used to operate the Radio on vehicles with remote mount Radio Control units.

Radio Module Interface

Fits Canyon, Colorado, Sierra 1500, Sierra 1500 Limited, Sierra 2500 HD, Sierra 3500 HD, Silverado

CODE IOB, IOR. CODE: IOB, all, labeled: 42342515. CODE: IOB, all, labeled: 42516646. CODE: IOB, Chevrolet, labeled: 42342515. CODE: IOB, Chevrolet, labeled: 42516646. RADIO, CODE: IOB, all. RADIO, CODE: IOB, Chevrolet.